Function visualSuite

test/unit/visual/visualTest.js:52–83

(
  name,
  callback,
  { focus = false, skip = false, shiftThreshold: newShiftThreshold } = {}
)

 * key `focus` to true to only run this test, or its `skip` key to skip it.
 */
export function visualSuite(
  name,
  callback,
  { focus = false, skip = false, shiftThreshold: newShiftThreshold } = {}
) {
  let suiteFn = describe;
  if (focus) {
    suiteFn = suiteFn.only;
  }
  if (skip) {
    suiteFn = suiteFn.skip;
  }
  suiteFn(name, () => {
    let lastShiftThreshold;
    let lastPrefix;
    beforeAll(() => {
      lastPrefix = namePrefix;
      namePrefix += escapeName(name) + '/';
      lastShiftThreshold = shiftThreshold;
      if (newShiftThreshold !== undefined) {
        shiftThreshold = newShiftThreshold;
      }
    });

    callback();

    afterAll(() => {
      namePrefix = lastPrefix;
      shiftThreshold = lastShiftThreshold;
    });
  });
}

/**
 * Image Diff Algorithm for p5.js Visual Tests